It's generally best to do the port as directly as possible, even if the resulting code is ugly in the target language, then refactor to fit the new language bet

It's generally best to do the port as directly as possible, even if the resulting code is ugly in the target language, then refactor to fit the new language better. Doing both at once can make things a lot more difficult. (With porting you generally want to have as little time as possible where everything is 'in pieces' and the port is non-functional, hence why gradual processes are usually required for larger projects)